Instale o sg3_utils para algumas ferramentas úteis do scsi:
sginfo:
# sginfo /dev/sdb
INQUIRY response (cmd: 0x12)
----------------------------
Device Type 0
Vendor: VMware,
Product: VMware Virtual S
Revision level: 1.0
Device Capacity:
# sg_readcap /dev/sdb
Read Capacity results:
Last logical block address=208895 (0x32fff), Number of blocks=208896
Logical block length=512 bytes
Hence:
Device size: 106954752 bytes, 102.0 MiB, 0.11 GB
Existem muitos desses comandos sg para investigar. Consulte RedHat Article ID: 17988 Compreendendo o endereçamento SCSI no RedHat Enterprise Linux